Formation of laser-induced periodic surface structures (LIPSS) on tool steel by multiple picosecond laser pulses of different polarizations

Gregorčič, Peter; Sedlaček, Marko; Podgornik, Bojan; Reif, J.

doi:10.1016/j.apsusc.2016.06.174

Cited by 106 publications

(77 citation statements)

References 34 publications

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“…Another approach is the two-step processing employing a train of pulses or multiple passes with varying relative orientation of the scans in regard to the polarisation direction that lead to square-or diamond-shaped LIPSS. Superimposition of LIPSS can occur with significantly less fluence per pulse than that used in the initial pulses [9,23,24].…”

Section: Introductionmentioning

confidence: 99%

Triangular laser-induced submicron textures for functionalising stainless steel surfaces

Romano

García‐Girón

Penchev

et al. 2018

Applied Surface Science

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Section: Introductionmentioning

confidence: 99%

Triangular laser-induced submicron textures for functionalising stainless steel surfaces

Romano

García‐Girón

Penchev

et al. 2018

Applied Surface Science

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“…This might include the excitation of surface plasmon polaritons (SPP) [22][23][24]. An alternative approach to explain LIPSS formation is given by a self-organization of the irradiated material via laser-induced thermal instabilities resulting in material redistribution [25]. HSFL with spatial periods much smaller than λ are still controversially discussed in literature, and a deep understanding of the formation mechanism is still missing.…”

Section: Introductionmentioning

confidence: 99%

Large-area fabrication of low- and high-spatial-frequency laser-induced periodic surface structures on carbon fibers

Kunz

Büttner

Naumann

et al. 2018

Carbon

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The formation and properties of laser-induced periodic surface structures (LIPSS) were investigated on carbon fibers under irradiation of fs-laser pulses characterized by a pulse duration  = 300 fs and a laser wavelength  = 1025 nm. The LIPSS were fabricated in an air environment at normal incidence with different values of the laser peak fluence and number of pulses per spot. The morphology of the generated structures was characterized by using scanning electron microscopy, atomic force microscopy and Fast-Fourier transform analyses.Moreover, the material structure and the surface chemistry of the carbon fibers before and after laser irradiation was analyzed by micro Raman spectroscopy and X-ray photoelectron spectroscopy. Large areas in the cm 2 range of carbon fiber arrangements were successfully processed with homogenously distributed high-and low-spatial frequency LIPSS. Beyond 2 those distinct nanostructures, hybrid structures were realized for the very first time by a superposition of both types of LIPSS in a two-step process. The findings facilitate the fabrication of tailored LIPSS-based surface structures on carbon fibers that could be of particular interest for e.g. fiber reinforced polymers and concretes.

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“…2d, further increase of pulse fluence but same number of pulses led to bigger area of uniform LSFL and reduced fraction of HSFL. Hence, the threshold fluence for HSFL generation is lower than that for LSFL [22]. On the contrary, the same number of pulses but with a lower fluence resulted in the formation of LSFL and HSFL across the spot area ( Fig.…”

Section: Single Spot Irradiationmentioning

confidence: 92%

Sub-micron structuring/texturing of diamond-like carbon-coated replication masters with a femtosecond laser

Michalek

Batal

et al. 2020

Appl. Phys. A

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Diamond-like carbon (DLC) coatings have very attractive mechanical and tribological properties, i.e. high hardness, low friction and high wear resistance. Therefore, DLC is often used as a solid lubricant in moulds for injection moulding. Laser processing of DLC with ultrashort lasers, i.e. femtosecond lasers, can be performed both at micron and sub-micron scales, namely by producing laser-induced periodic surface structures (LIPSS). In this research, the effects of laser structuring/ texturing on DLC properties are investigated. First, the laser-processing parameters were optimised to produce uniform LIPSS without damaging a thin DLC film and then the properties of the textured DLC-coated substrates were studied. It was determined that the tribological properties of the processed surfaces remained unchanged, but the hardness of the structured/ textured DLC layers was reduced significantly. Although GAXRD and Raman spectroscopy did not show any significant crystallisation of the DLC coating after the laser irradiation, the analysis indicated that a thin graphitised layer had been formed on the surface as a result of the femtosecond laser processing.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Formation of laser-induced periodic surface structures (LIPSS) on tool steel by multiple picosecond laser pulses of different polarizations

Abstract: Formation of laser-induced periodic surface structures (LIPSS) on tool steel by multiple picosecond laser pulses of different polarizations, Appl.

Cited by 106 publications

References 34 publications

Triangular laser-induced submicron textures for functionalising stainless steel surfaces

Triangular laser-induced submicron textures for functionalising stainless steel surfaces

Large-area fabrication of low- and high-spatial-frequency laser-induced periodic surface structures on carbon fibers

Sub-micron structuring/texturing of diamond-like carbon-coated replication masters with a femtosecond laser

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